KM

Kiyofumi Matsunaga

SI Sumitomo Rubber Industries: 11 patents #179 of 1,637Top 15%
DC Dunlop Sports Co.: 10 patents #38 of 168Top 25%
SL Sri Sports Limited: 7 patents #63 of 176Top 40%
Overall (All Time): #134,416 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 26–28 of 28 patents

Patent #TitleCo-InventorsDate
8333667 Golf club head Tomio Kumamoto 2012-12-18
7892106 Iron-type golf club head and golf club set — 2011-02-22
7614964 Golf club head — 2009-11-10